聚二甲基硅氧烷
微型多孔材料
材料科学
压力传感器
纳米技术
触觉传感器
碳纳米管
光电子学
复合材料
计算机科学
机器人
机械工程
人工智能
工程类
作者
Chun‐Sheng Jiang,Ruyue Lv,Yanli Zou,Huiling Peng
标识
DOI:10.1016/j.mee.2023.112105
摘要
Introducing microstructure in the flexible pressure sensors is an effective strategy to enhance the performance of the sensor. Herein, we fabricated a flexible pressure sensor with three-dimensional (3D) miroporous based on a hybrid of polydimethylsiloxane (PDMS) and multiwalled carbon nanotubes (MWCNTs). The 3D microporous was produced by a facile and low-cost process using NH4HCO3 as a sacrificial template, the NH4HCO3 particles were decomposed to gas and left microporous in the hybrid of PDMS and MWCNTs. The microporous structure inside the sensor allowed for a wide pressure range (~140 kPa). The sensor could detect large motions of finger, wrist, elbow, knee, and even small motion such as facial expression. In addition, a 3 × 3 tactile sensor array was successfully applied in the pressure distribution of fingers to grasp a cup. Results demonstrate the sensor is promising to application in wearable electronics and human-machine interfaces for pressure sensing.
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